Re: broken Apple][ serial port

[mattb@gi.alaska.edu (Dopey)]

In article <8B4306E.009E0009E7.uuout@genesis8.frmug.fr.net>,
ludovic.lange@genesis8.frmug.fr.net (LUDOVIC LANGE) wrote:
 
> That's why I am asking : Does anybody have a technical
> documentation on the Apple II (c or e), of its mother board,
> serial interface, serial port pinout, etc...

The pinouts are:

1  DTR
2  TD
3  GND
4  RD
5  DSR

It is all controlled by the IWEM chip and has two buffers, one for each port.

The way you can set the port to different databits and speeds is by using
the Apple //c System Utilities disk.  It allows you to set the ports for
different rates, bits, parity, etc.


> 
> Because, as the Apple computer is not mine, I'd like to repair
> it...
> 
> BTW, I also have access to an apple IIe, but without the serial
> port. Does anyone know how to build one ?
> 
Build one?   I wouldn't even try.  The Apple Super Serial board can be had
for under $30 anymore.  Try Creative Computers.

> Yours sincerly, Ludovic.